Automatic insulator.



R. A. PARENT.

.AUTOMATIC INSULA APPLICATION FILED MAY2 16.

1,212,547. V Patented Jan. 16,1917.

By this simple construction it will be seen that the wire may be veryquickly placed in engagement with the insulatorand because of the simpleand durable construction 'of'this insulator the possibility of the samebecoming'broken or out of order when:

in use is greatly minimized r If it is desired to remove the w1re thewire may be grippedand then by pulling upwardly uponthewire it will beremoved from the binding action ofthe wedging ribs 8. 7 It will be notedthat: when the blocks are in engagement with the frame they will bepositively held against'side movementby' the fitting of the fingers-2and 4' within the verticalchannels 10, while they-Fwill be held againstvertical movement byresting upon the base'arms 1 and by the engagementof the lip 5 and thenut 11. p It is, of course, obvious that under someconditions'it may be desired to support the insulator upon thesidenportions of a post 'iinger 4:

orinfact upon various vertically positioned structures; In order toaccomplish this function the frame as shown in'Fig. 5 is employed.Thisframe comprises a base 1- havingvertical side fingers 2 and 4?. The

lip 5", while the externally threadedend 3 of thefinger 2 is adapted tocarry a nut 11. It is obvious thatvthe blocksused in con- 1 nection withthis frame are thesame as used in. connection with the preferred formand,

therefore, the operation of the insulator is in all respects similar tooperation offthe preferred form. -However, a screw 13,.is formed 'uponthe finger so as to extendfrom the side portionsof the frame, where Ibyfthe screw-may be screwed into a'vertical supporting structure,althoughthe frame will be carried in .a horizontal positionfso as tocarry the blocks in the same manner they are carried in the preferredform. 7

From the foregoing description it will be seen that a very efficient,simple,1and-durable automaticinsulator has been provided,

wherein the blocks are provided with central'wedging ribs so that a wirea-fter'being.

drawn tautly across the upper portion of the insulatormay. be moveddownwardly between'the ribs and bythe wedging action 'of theiribs beheld'in a taut condition. It. wlllifurther be seen that the.construction of theframe is such as to permit the same tozbe easilycarried upon a supporting structure, whilethe side arms ofthe'framebyfitting withinthe' channels of the blocks will hold the blocks againstdisplacement, to-

getheriwith the assistance ofthe overhang inglipand the nut ashereinbefore set forth. ltwill be noted by referring particularlytoliig; 3 that as the wire 12is wedged between the central ribs 8 itwill normally be held from -slippingas hereinbefore stated. 7 If,however, undue strain isbrought to bear isprovided, with an overhanginga v3. An insulator. of

in one directionupon the wire, it will cause the two blocks topivot'upon the arms 4: of

the supporting frame, swinging] the two ends 9 thereofinto a clampingengagement withthe wire, as shown clearly dotted,

' lines in Fig.3, and thustwo points of binding" action will be exertedupon the wire,

namely: the central ribs and the two clamping ends of the blocks; Itwill be seen that in this'manner the wire will be eflic ently held fromslipping and that the. blocks may pivotiin either direction inaccordance with the manner-in which the wire isbeing pulled is ,7 Whatisclaimed is: '1'. An insulator of the tions and tapering toward theirouter:por-' class described, :comprisi-nga pluralityfof blocks, means'for r supporting "said blocks, wedging ribs iiorm'ed. upon the innerfaces of said blocks,

saidribs being. enlarged attheir lower pore tions, therebyproviding'anenlarged"en trance therebetween, whereby a wire maybe passedbetween said" ribs until the samebe- I comes wedged, thereby causing thewir'ei to be efficiently supported by "said blocks 2. An insulator ofthe classcdescribcd,

comprising a plurality of blocks,imeans for supportingsaid blocks," saidblocks comprising elongated bodies, wedging ribs formed upon the innerfaces of saidblocks,

said wedging ribshaving widened enlarged lower-portions, said ribstapering so'asto p be considerably reduced at their outer ends, V

ice

thereby providing a widened entrance open ing, the ends of said-blocksbeing formed in'a plane to the rearof the inner bearing faces of saidwedging ribs, whereby a wire may bequickly and easily passed between theouter portions of saidribs and then by 'beingvmoved inwardly thereon:will finally wedge between the ribs and thus be retained by theinsulator. p

comprising a plurality ofblocks, said blocks provided with channels in.their I side portions, a frame supporting saidblocks and the classdescribed, in)

fitting within" said; channels, ,wherebysaid blocks will be I held inengagement with each other, and-means carried by said blocks forgripping a wire and automatically holding the same therebetween'.

4. An. insulator 'of the class described,

cal fingers extending from said basefarms said blocks will be heldagainst side displacement, andmeans carried' by said blocks comprising aplurality of blocks having vertical channels in their outer sideportions, a frame having base'arm's fitting upon said blocks forsupportingthe same, vertiand fitting within said channels,iwhereby" forengagino' a wire and holding the same ii'n engagementwiththe insulator.V 5'. An insulator of the; class described, icomprisinga plurality ofblocks, said blockshaving vertical channels in their side portions, aframe comprlsmg'base arms,'vert1- cal fingers carried bysaldfbasefa'rmsmeans for; supporting, said frame, said fingers fitting,Within said channels, v,rwherehy said f blocks Willbeleificientlyflsupported, and means for holding said blocksfrom-faccidentally moving fromenjgagement With's'aidf frame.

I 6;:An insulaton'of the'el'ass described}. comprising -a;.plurality ofblocks, said blocks 1 I having x 'ertical ehannels .in theirside per-"-"tions, a frame comprising base arms, *vertical fingers carriedby'saidvba searms, means forsupporting said frame, --sa 1d fingersfitting within" said-"channels, whereby said blocks will be efii'ciently"supported, one of' said fingers being, provided With'nn overhanginglip, the remaining finger being pro- (vided' with an externally threadedexten-' sion, a; nut earriedfnponsaidIthrendedx: tension, said lipbearingnpon the top of one of said blocks and'sztidvnn't bearing uponthetop of the remaining block -whereby said" blocks will be ,removably heldupon I said frame, and means earried'by said bloeks for receivingit"WiI'Q andholdin he seine in rengagement With the insnlatmpr 7 .Aninsnlatonlofsthe ,class described,

comprising a plurality of blocks, said'blocks phaving vertical'channelsin their side pOr-Y 1 I tions, a frzrme c01nprising .ba'se arms, VBI'tl-Q cal fingersCarried by saidarms, a screw I extending from said frame"for supporting signature.

seid" fingers'irithin sand- 35 7 channels, whereby: said bloeks will beIsu'p-;- 1 v ported,:one off'saidmfingers beingprovidedf "with anoverhanging. lip, thefremainingj" finger 'beingz proi ided withanexternally y. threa'de d extension; n nut Carried upon; said? threadedextension, said lipf-fbearinginpon' V theio'pf ofone ofi sniclblockSfandsaidgnnt li r bearing npon; the top of the rema irfing-'v blockiWherebj?said bloeksw'ill berernovj 1 ably heldnpon'snidgframe,and-meanscer- Yriedby said blocksfo'r receiving a Wire and; I holding the same inengagement,therewith; V v

{8f An, insulator of 'theclass. described, I comprising}; frame,saidfrzpmecomprisingf I basearms, ffingers extending vfrom said 1 armgmea ns for" supportingj'jsaid jfram'e l r blocks positioned np'onsaidfram'e,'f saidy" I blocks having chahnelsfs'aid fingers resting v Withinsaid channels," 'sai d" "blocksz-hiving rcentraliribs, theends ofsaidbloeksbein g normally spaced apart, said" ribsgjlbeing, f -adaptedtofreceive'a Wire therebetwe en for A I suportingthefsame,saidblocksbeingpivots, r

allyzmonntec lilpon said fingerswhereby Qwhen unduei pressure ,iseXerted.lipon the, I Wire cer'riedji by said fribsfthe" ends of saidl 7blockswillbeswunginto'abindingvengagement with the wireforpositivelyholding thesalne from slipping. I I 1 In testimony whereof -I-herenntoaffix my i RUF S n. PAR

' copies of this pste nflmeibe; obtained for five cents each, by agddressin g' the fflfihmissibnei of intents V I WashingtomiDQGfl?

